Rolling mill



May a, 1932. .1. ROUX 1,856,170

ROLLING MILL Filed June 10, 1929 Int 911i or Patented May 3,- 1932 a UNITED STATES PATENTOFFICE v UAGQUES ROUX, F ISBERGUES, PAS-DECALAIB, FRANCE ROLLING MILL Application filed June 10, 1929, Serial No. 369,644, and in Belgium June 25, 1928.

llhis invention relates to rolling mills, the rollers of the other duo and the inven- 'lhe object of the invention is to avoid elastion can be applied twice. tic de'iormations which are harmful for the In the case of a rolling mill for tubes type precision of rolling, to allow a precise ad- ,Mannesmann, havingtwo rollers which are t ]ustment of the rollers to be obtained by not parallel, it contains the axis of the roller simple means, and to reduce the importance which can be adjusted and the line of shortol'the play between the last pieces. est distance between the axes of the two ll; has previously been proposed in unirollers; in the case of a rolling mill having cereal rolling mills for Higirders, to use two three rollers, the axes of which are generhorizontal and two vertical rollers, the axes ating lines of a hyperboloid, such as forinof which are all in the same plane, and to stance a machine for screw treading, it conadjust the distance between the two vertical tains the axis of the adjustable roller and rollers by a displacement of counter-wedges the point situated at equal distance, which which is parallel to the plane of the {our 1s also the shortest distance, from the three w ones. axes.

llt has also been proposed in roller mills in The adjusting members consist preferably which the bearings of one roller are fixed and 0t Wedges operated by one screw, which is the bearings of the other roller are adjustrlghtand letthanded, the said wedges exertable, to lit the axle of the fixed roller with mg their pressures upon an intermediate to mb rs, which, by a displacement symmetblock or the like which receives the effort rical to the plane containing the axes of the f one end of the roller. It is proceeded two rollers, cause a displacement of a ring 111 he Same Way for the other end and a meaeting' upon the axle of the adjustable roller, h m el connection may ensure a simultanethereby adjusting the distance between the 011s ad ustment of the two ends of the roller.

W rollers This, however, is not essential.

The present invention consists in a rolling Al} h r chara teristic feature of the innoill housing in which a movable roller is adf ll 1 th the distance between the upjusted in such a manner that during the rollrights oi th l mn forming the housing j g peration it, bears upgn the columns may be mcreased 01 at least part Of their 30 through the intermediary of members adaptg h m he fifil ting members. '80

ed to adjust its lifting and are symmetrical The compa ying drawing shows by way l ti l t a plane as d fi d b l d are of example, in a sectional elevation, a column interconnected in such a manner that their of enclosed h ing a cording to the in symmetry is maintained for each regulation, Ventlone y W and in which the various parts are so posimg H1111 housing is formed of two'85 tioned that the roller, the lifting of which is one of Whlch 15 shown. in the W- adjusted, has on the one side the said symmg by t numeral and wh1ch comprises metrical members and on the other side the two Fl 2 between Whlch l' the What roller or muem trunnions 3, l of the rollers, resting 1n beam 'lhe said plane is defined as follows: In gii b 7 the We of a rolling mill-having two parallel th f' f tests rollers, called duo rolling mill, it contains w 3 at part l the axes of the rollers; in the case of a rolling 8 me p anes upon W 10 can Shde the is will having three parallel rollers, called trio g ggii ig f zfiffig l a Screw 13 winch rolling mill, it contains the three axes which The I wedges 11, 12 can 6 symmetrically are in one plane; in the case of a rolling mill di l d b means of the Screw 13 in any with liour' parallel rollers, called dou le suitable manner, for instance in the following duo it contains the axes of the rollers of one manner:

W "duo and another plane contains the axes of One of the ends of this screw is operated by a socket wrench 14 which may be operated either through the intermediary of an endless screw or direct by a wheel. A symmetrical displacement of the wedges is ensured by resilient stops arranged at the ends of the operating screw. On the side of the driving means the resilient stop maybe formed of a screw 15 traversing the socket-wrench 14; on the other side, it may be formed of a screw 16 ended by a round socket 17. In the bottom of each socket a few Belleville washers may be placed, that is, convex washers acting in the manner of springs. Such washers may be replaced by a somewhat plastic substance. Each column is enclosed by an 4 upper transverse member 24.

The distance between the uprights 2, 2 is greater near the wedges than at their other end; this allows a reater displacement of'the wedges to be obtained, and also of removing in an easy manner the rollers, by passing them obliquely between the two columns which form the housing.

The grooves 22 for fixing the member which serves as a support to the guide-bars (not shown) for the piece which is being rolled may open at their upper part, at 23; in this case the grooves 22 are closed at their upper part by pieces 20, 21.

A cage according to the present invention allows of obtaining in practice a very satisfactory lifting or tightening: 4 inches for a rolling mill known as a 25 inch mill with incline of The upper cross-members 18, 19 are arranged so as to be easily removable. In the drawing, they are shown at the upper part.

The wedges may be made of cast. steel with brass nuts cast in a recess of these wedges and heated to red so as to obtain a perfect adherence. The inclination of the tangent of the all le of these wedges may vary between an 4; these limits however may be widened.

It is to be understood that the present invention does not apply only to ordinary rolling mills for hot or cold rolling but that it also applies to any special housings for rolling mills, such as the Mannesmann. It is known that .in a Mannesmann rolling mill the axes of the rollers are situated in diffe ent planes. I.

It is of course understood that the invention is not limited to the various details described. Thus, double wedges may also be disposed below the lower roller as it is already known for open housings; but in this case, the distance between the uprights of the columns should be sufficiently great, at least at the upper part of the columns, for permitting to mount and dismount the rollers by placing them in a deviated position relatively to their working position, between the two closed columns which form the housing.

The present invention has the great advantage of comprising adjustment members which do not traverse the upper part or the lower part of the columns of the housing, and thus the parts of the housing which are subjected to bending are not weakened.-

When the said adjustment members are arranged below the lower roller, the distance between the uprights may be increased near the said adjustment members for permitting a greater amplitude in their movement, but the distance between the uprights at the upper part of the latter should be at least sulficient for permitting the mountin or dismounting of the rollers, as said a ove.

I claim:

1. A rolling mill housing having enclosed columns, rollers, two wedges for adjusting each end of one roller, one rightand left- 'handed screw at each end of said roller for adj ustin the wedges at the ends of said roller,

said wed ges being symmetrical relatively to a plane as defined by the axis of said roller and a point of the axis of another roller and being interconnected in such a manner that their symmetry is maintained for each adjustment of the ends of the roller, the latter roller being positioned between the said wedges and another roller, and a block positioned between the wedges and the adjustable roller, and resting upon the adjustable roller, upon which block the said wedges exert their pressures, as set forth.

2. A rolling mill housing havin two enclosed columns with uprights, rollers, two

wedges for adjusting each end of one roller,

one rightand left-handed screw at each end of said roller for adjusting the wedges at the ends of said roller, said wedges being symmetrical relatively to a plane as'defined by the axis of said roller and a point of the axis of another roller and being interconnected in such a manner that their symmetry is maintained for each adjustment of the ends of the roller, the latter roller being positioned between the said wedges and another roller,

a block, the said block bearing upon the adjustable rollerand bearing sideways upon the uprights of the columns, the distance between these uprights being increased by an amount at least suflicient to permit the rollers to be mounted and dismounted by passing them in ,a deviated position relatively to their working position between the two enclosed columns forming the housing, as set forth.

JACQUES ROUX. 

